re PR tree-optimization/85693 (Generation of SAD (Sum of Absolute Difference) instruc...

	PR target/85693
	* gcc.target/i386/pr85693.c: New test.

From-SVN: r260047

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index bd65daa518a08590fa990a3a333b4290d157b9bc..dc19677d02cb698262f3bfeb645eded36a3684c6 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-05-08  Uros Bizjak  <ubizjak@gmail.com>
+
+       PR target/85693
+       * gcc.target/i386/pr85693.c: New test.
+
 2018-05-08  Jakub Jelinek  <jakub@redhat.com>
 
        PR target/85683

diff --git a/gcc/testsuite/gcc.target/i386/pr85693.c b/gcc/testsuite/gcc.target/i386/pr85693.c
new file mode 100644 (file)
index 0000000..214a739
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr85693.c
@@ -0,0 +1,21 @@
+/* { dg-do compile }
+/* { dg-options "-msse2 -O2 -ftree-vectorize" } */
+
+#define N 1024
+
+int abs (int);
+
+unsigned char pix1[N], pix2[N];
+
+int foo (void)
+{
+  int i_sum = 0;
+  int i;
+
+  for (i = 0; i < N; i++)
+    i_sum += abs (pix1[i] - pix2[i]);
+
+  return i_sum;
+}
+
+/* { dg-final { scan-assembler "psadbw" } } */